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4. Rotating disc and ring electrode
The rotating disk-ring electrode was developed by Frumkin and Nekrasov in 1959, and its theory was finalized in 1971. . It has numerous applications in electrochemical analysis, particularly in the study of reaction mechanisms and the detection and identification of short-lived intermediate species.
4.1 Method description and principle
The electrode consists of a concentric conductive disk and ring, of various types: platinum, gold, silver, copper, vitreous carbon, etc., separated by an insulating ring of Teflon or polyethylene (figure ). The moving part of the electrode is connected to a motor that rotates the disk and ring at constant speed.
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Rotating disc and ring electrode
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